The problem with writing is thinking "This is the the shit!" then about five seconds later thinking "This is shit!"
While livejournal user Synecdochic created this list for fanfiction (warning: mentions of sex), it works pretty well for any kind of fiction. By works pretty well, I mean that it is a neato list of prompts to keep in mind while you are writing and especially if you think you are heading from "the shit" to "shit". Next time you are writing - shortly after you've begun, or maybe around chapter five, try:
29. The use of negative space -- things that are clearly there (in the author's concept of the characters, their history, their backstory, events that have gone on, etc) but are built by showing the secondary influences and leaving the reader to slowly realize.
Or just examine your earlier bits and ask if you've shown the thing or all the pieces around the thing. Which one would keep you reading, looking for that next elusive clue?